CSLB General Building (B) — All Questions

What is the purpose of placards on a vehicle carrying hazardous materials?

• a.To warn others of the hazard class of the cargo✓
• b.To advertise the trucking company
• c.To show the truck's weight rating
• d.To indicate the delivery route

Placards are diamond-shaped signs that communicate the hazard class of the materials being transported. They alert other drivers, the public, and emergency responders to the danger. Placards must be visible on all four sides of the vehicle.

On how many sides of a vehicle must placards be displayed?

• a.Only the rear
• b.All four sides (front, rear, and both sides)✓
• c.Only the two sides
• d.Only the front

Hazardous materials placards must be placed on the front, rear, and both sides of the vehicle. This ensures the hazard is visible from any direction. Missing placards on any side is a violation and a safety risk.

What shape is a hazardous materials placard?

• a.A circle
• b.A rectangle
• c.A square turned on its point (diamond)✓
• d.A triangle

Placards are square-shaped signs displayed on a point so they appear as a diamond. This standardized shape makes hazmat placards instantly recognizable. The color and number on the placard indicate the specific hazard.

How must placards be positioned on a vehicle?

• a.Upside down
• b.Hidden behind the mud flaps
• c.Lying flat on the hood
• d.So they are readable, with words or numbers level and reading from left to right✓

Placards must be turned so the diamond points up and down and the numbers and words read correctly from left to right. They must be clean, not damaged, and clearly visible. Placards must be at least 3 inches away from other markings that could confuse responders.

What does the number in the bottom corner of a placard represent?

• a.The hazard class or division number✓
• b.The truck's license plate number
• c.The delivery zip code
• d.The number of packages

The number at the bottom of a placard identifies the hazard class or division of the material, such as 3 for flammable liquid or 8 for corrosive. This helps responders quickly understand the hazard. The class number works with the color and symbol on the placard.

When must a four-digit identification number be displayed on or near a placard?

• a.Never
• b.When required for certain bulk packagings and cargo tanks✓
• c.Only for non-hazardous cargo
• d.Only at night

Certain shipments, especially bulk packagings and cargo tanks, must display the material's four-digit ID number on the placard or on an orange panel next to it. This number lets responders identify the exact material. It corresponds to the ID number on the shipping paper.

There are two placard tables. What is the key difference between Table 1 and Table 2 materials?

• a.Table 1 is for liquids only
• b.Table 2 is for gases only
• c.Table 1 materials must be placarded for any amount, while Table 2 materials require placards only at 1,001 pounds or more combined✓
• d.There is no difference

Table 1 lists the most dangerous materials, which must be placarded no matter how small the amount. Table 2 materials require placards only when the total weight of all Table 2 hazmat in the vehicle is 1,001 pounds or more. Knowing which table a material falls under determines when placards are needed.

At what total weight of Table 2 hazardous materials must a vehicle be placarded?

• a.Any amount
• b.500 pounds
• c.750 pounds
• d.1,001 pounds or more✓

A vehicle must display placards when it carries 1,001 pounds or more (combined gross weight) of Table 2 hazardous materials. Below that threshold, placards are generally not required for Table 2 materials. Table 1 materials always require placards regardless of weight.

Who is responsible for supplying the placards to the driver?

• a.The shipper generally provides placards, but the driver must apply them correctly✓
• b.Only the state DMV
• c.The consignee
• d.The insurance company

The shipper usually provides the placards, but it is the carrier's and driver's responsibility to make sure the correct placards are properly displayed. The driver should verify that placards match the cargo. Never move a placardable load without the required placards in place.

What placard is used when a vehicle carries 1,001 pounds or more of mixed Table 2 hazardous materials of different classes?

• a.A blank white placard
• b.The DANGEROUS placard✓
• c.A wrong-way placard
• d.No placard is needed

When two or more Table 2 materials of different classes are carried and total 1,001 pounds or more, the driver may use the DANGEROUS placard instead of separate placards for each class. However, if 2,205 pounds or more of one class is loaded at one place, that class must have its own placard. This simplifies placarding for mixed loads.

What must you do if a required placard is lost or damaged during a trip?

• a.Continue driving and ignore it
• b.Cover the spot with tape
• c.Replace it as soon as safely possible so the vehicle stays properly placarded✓
• d.Remove all placards

Placards must remain in place and legible throughout the trip. If one is lost, damaged, or dirty, replace or clean it as soon as it is safe to do so. Driving with missing or unreadable placards is a violation and hides the hazard from responders.

How close can a placard be to other signs or markings on the vehicle?

• a.Placards can overlap other signs
• b.Placards must touch the license plate
• c.Placards should be hidden by other decals
• d.Placards must be at least 3 inches away from other markings that could reduce their effectiveness✓

Placards must be clearly visible and not crowded by advertising, other signs, or markings. They must be kept at least 3 inches away from anything that could reduce their visibility. Clear placards let responders identify hazards quickly.

What color is the flammable liquid (Class 3) placard?

• a.Red with a flame symbol✓
• b.Green with a gas symbol
• c.Yellow with an oxidizer symbol
• d.Blue with a water symbol

The Class 3 flammable liquid placard is red with a white flame symbol and the number 3 at the bottom. Colors and symbols on placards are standardized to communicate the hazard at a glance. Red generally indicates a flammable hazard.

When must a placarded vehicle keep placards displayed?

• a.Only when fully loaded
• b.From the time it is loaded until it is unloaded and cleaned or purged✓
• c.Only during business hours
• d.Only on highways

Placards must stay on the vehicle from loading until the hazardous material is unloaded and the container is cleaned, purged, or reloaded with non-hazardous material. An empty but uncleaned tank may still require placards. Remove placards only when they no longer apply.

Why must a driver check that placards match the shipping papers?

• a.To calculate tolls
• b.To choose a parking spot
• c.To make sure the correct hazard is communicated and the load is legal to move✓
• d.To decide the fuel type

The placards on the vehicle must correspond to the hazardous materials listed on the shipping papers. Mismatched or missing placards mislead responders and violate the regulations. Verifying this match is part of the driver's pre-trip responsibility.

What is required for a placard's durability and appearance?

• a.It can be handwritten in pencil
• b.It may be faded and torn
• c.It can be any random color
• d.It must be durable, weather-resistant, and maintain its color and readability throughout transport✓

Placards must be made to withstand weather and remain legible for the entire trip. Faded, torn, or dirty placards must be replaced. Durable, clear placards ensure the hazard is always communicated.

If a shipment does not require placards, may the driver still need a hazmat endorsement?

• a.No, the hazmat endorsement is generally required only for placardable amounts✓
• b.Yes, always
• c.Only for empty trucks
• d.Only on weekends

The hazmat endorsement is generally required when transporting quantities of hazardous materials that require placarding. Smaller shipments below placarding thresholds may not require the endorsement, though other rules still apply. Always confirm the requirements for the specific load.

What does a placard with the word 'OXYGEN' or an oxidizer symbol warn responders about?

• a.The material is flammable liquid
• b.The material can intensify a fire by supplying oxygen✓
• c.The material is radioactive
• d.The material is a corrosive acid

Oxidizers and oxygen placards warn that the material can supply oxygen and make fires burn hotter and faster. Responders must keep these materials away from fuels and flames. Recognizing the placard helps them plan a safe response.